Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10900112 | Hollow spring member and hollow spring member production method | Akira Tange | 2021-01-26 |
| 10837095 | Hollow stabilizer production method and hollow stabilizer production device | Akira Tange | 2020-11-17 |
| 10584408 | Carburization device and carburization method | Wataru Nakao, Akira Tange, Koichi Tango | 2020-03-10 |
| 7857916 | Co-Cr-Mo alloy fine wire, manufacturing method therefor, and planar body, tubular body, stranded wire and cable formed of wire | Akihiko Chiba, Yoshiki Ono, Shigemi Sato, Michihiko Ayada, Takeshi Suzuki +1 more | 2010-12-28 |